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United States Patent | 5,570,150 |
Yoneyama ,   et al. | October 29, 1996 |
A stereo photographing system having a stereo adapter for photographing two separate images of a same subject viewed from different points and formed onto one picture frame next to each other, and a camera including a finder and a photographing lens to which the stereo adapter can be detachably attached at the front end of the photographing lens. The stereo photographing system further includes a finder viewing field determining means provided in an optical path of the finder for selectively determining either a regular viewing field or a stereo viewing field, a detecting means which detects the stereo adapter when the stereo adapter is mounted to the camera, and a switching means which swatches between the regular viewing field and the stereo viewing field determined by the viewing field determining means in accordance with the detecting means.
Inventors: | Yoneyama; Shuji (Tokyo, JP); Suzuka; Shinya (Tokyo, JP) |
Assignee: | Asahi Kogaku Kogyo Kabushiki Kaisha (Tokyo, JP) |
Appl. No.: | 298391 |
Filed: | August 30, 1994 |
Aug 30, 1993[JP] | 5-213976 |
Current U.S. Class: | 396/324; 396/337 |
Intern'l Class: | G03B 035/00; G03B 001/00 |
Field of Search: | 354/110,111,112,117,122,125,219,222,224,225,75,76,79,159,94 |
3674339 | Jul., 1972 | Satanagi | 354/122. |
3815970 | Jun., 1974 | Murphy | 355/22. |
4009951 | Mar., 1977 | Ihms | 354/117. |
4295153 | Oct., 1981 | Gibson | 358/88. |
4707106 | Nov., 1987 | Johnson et al. | 354/481. |
4844583 | Jul., 1989 | Lo | 354/174. |
4878744 | Nov., 1989 | Hilbert et al. | 350/447. |
5073789 | Dec., 1991 | Mumpowor | 354/122. |
5349403 | Sep., 1994 | Lo | 354/114. |